<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>按钮</title>
    <style>
        .box{
            width: 700px;
            height: 300px;
            text-align: center;
            position: absolute;
            margin: auto;
            background: #2e8eb6;
            top: 0;
            bottom: 0;
            right: 0;
            left: 0;
            line-height: 300px;
        }
        img{
            transition: all 0.5s ease-in-out 0s;
            margin: 0 30px;
            vertical-align: middle;
        }

        img:hover{
            transform: rotate(360deg) scale(1.5);
            cursor: pointer;
        }

    </style>
</head>
<body>
    <div class="box">
        <img src="../img/delicious.png" alt="">
        <img src="../img/facebook.png" alt="">
        <img src="../img/rss.png" alt="">
        <img src="../img/twitter.png" alt="">
        <img src="../img/yahoo.png" alt="">
    </div>
</body>
</html>